The Mouth Is the Orifice of the Digestive System. This means that what is going on with the tongue gives you a pretty good idea of what is going on in the gut. How well we digest food and drink shows up on the tongue. This is visible in the tongue coating and in the tongue color.
Primary groups: people who are emotionally close, know one another well and seek one another's company.he major characteristics of primary and secondary groups are with primary groups they are more close together like in best friends and all. Secondary groups are not that clos â¦ e and not together all the time. 14 people found this useful.
Data, or facts, may be derived from several sources. Data can be classified as primary data and secondary data. Primary data is data gathered for the first time by the researcher; secondary data is data taken by the researcher from secondary sources, internal or external.e shall therefore discuss secondary data first and then take up primary data. Secondary data is of two kinds, internal and external. Secondary data â whether internal or external â is data already collected by others, for purposes other than the solution of the problem on hand.